Band-brake for vehicles.



No. 769,416. PATENTED SEPT. 6, 1904 A. SPERL. BAND BRAKE TOR VEHICLES.

APPLICATION INJID JUNE 19. 1902.

H0 MODEL.

UNHTED STATEs Patented September 8, 1904.

PATENT @EEicE.

BAND-BRAKE FOR VEHICLES- srnczszca'rron forming part of Letters PatentNo. 769,416, dated S p e ber 6, 1904. Application filed June 19, 1902.Serial No. 112,392. (No model.)

To all whom it may concern:

Be it known that I, ANTONIN SPERL, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented a new and useful Improvement in Band-BrakeFixtures for Car riagesJ/Vagons, Automobiles, and the Like, of which thefollowing is. a specification.

My invention relates to a very compact, simple, light, and positivebrake by which the wheels of wagons, carriages, and the like can be heldagainst rotation to any extent desired by the driver of the vehicle.

An object of my invention is to provide a superior simple form of aband-brake which can be readily attached to the axle and hub of anordinary vehicle and will positively hold the wheel against rotation ineither direction, so that when'the brake is set for the purpose ofstopping the vehicle when going.

in one direction it will equally serve the purpose of preventing thevehicle from moving back, although the vehicle may have been stopped bythe brake while going up hill.

Another object is to provide for instant release of the brake by simpleand compact means.- i

The accompanying drawings illustrate my invention.

Figure I is a side elevation of a wagon i'urnished with my invention. 7Fig. 11 is a perspective detail of the invention attached to aWagon-axle, a fragment of which is shown. A portion of the.frictioneringof the wheel hub is also shown in place, althoughthevehicle-wheel is omitted from this view. Fig. H1 is a fragmentallongitudinal sectional view showing the invention applied to a wagoninanother form. Fig... IV is a frag-mental sectional detail showing thepreferred construction of the attachment between. the band andcrank-shaft. Fig. V is a .fragrnental section on linev V, Fig.- IV.

a desig ates a crank-shaft furnished at one end with wo'pihs 1 2.

b designates the brake-band to encircle the wheel-hub and fastened atits ends to said pins, respectively.

designates the crank-arm on the crankshaft 1;.

d designates abracket for attachment to the axle and furnished with abearing for the shaft. The loops 3.4:, projecting from said bracket,form the said bearing for the shaft a.

e e designate clips by which the bracket is fastened to the axlef.

g designates the rod for operating the crank 0 to rotate the crank-shafta.

it designates the friction-ring for the hub i of the vehicle-wheel.

j designates a resilient brace fastened to the clip e and extendingbeneath the brake-band band connected therewith by means of the hook is,hooked into a loop m, fastened to the brake-band b.

. 5 6 designate loops on the ends of the band b, respectively loopedover the pins 1 2. n

vdesignates a cross-bar on the ends of said pins and fastened in placeby screws 7, screwed into screw-threaded sockets 8 in the ends of thepins, respectively.

The resilient brace j is attached at substantially midway between theends of the brakeband, where there is no longitudinal movement of saidbrake-band when the brake is operated. This arrangement avoids makingany undesirable sliding connection between said brake-band and brace.

In practical operation when the crank-shaft a is rotated thecircumference of the circular figure formed by the brake-band 5 iscontracted positively by the change of position of the pins 1 2, thusdrawing the brake-band tight upon the hub-ring it. By preference thepins 1 2 are symmetrically disposed equidistant from' and on oppositesides of the axis of the shaft a. For convenience of construction thecrank-shaft a is furnished with a cross-head p, from the opposite endsof which the band-holding pins 1 2 project.

In the form shown in Fig. III the bracket is furnished with a bar q,having atone side the loops 3 4 to form bearings for the rockshaft andhaving on the opposite sides standards r .9, provided, respectively,with feet M4 to fit upon the vehicle-axle. One of said feet, u, isprovided with a toe u to project paral- 161 with said bar q. The clip efits over said toe to clamp the same upon the axle, and

the clip a clamps the foot 23 to the axle. The I friction-ring k isfurnished with a hub-ring '0 for attachment to the hub of thevehiclewheel. The brace j isfastened to the clip 6' by means of a boltwand exerts a yielding force to hold the brake-band normally away fromthe friction-ring, as clearly shown in Fig. III, so that it serves thedouble purpose of withdrawing the brake-band from the friction-ring andalso of holding the brake-band in true position. It is connected withthe axle through the clip and with the brake-band opposite therock-shaft a, so as to Constantly tend to draw the brake-band away fromthe friction-ring.

9 designates a spring to turn the shaft or to its normal position.Preferably the spring is in the form of a coil-spring around said shaft,one end, as, of which spring engages the bracket d, and the other end,y, of said spring engages the crank-armn to return it to release thebrake-band b.

The parts may be differently constructed .and arranged, as indicated bythe different forms shown in Figs II and III. In Fig. III the crank-armc is applied to the shaft a close to the cross-head p, and thefriction-ring h is fastened by clips 2 to the spokes 10 of the wheel;but it is to be understood that I do not limit myself to-any mode offastening the friction-ring to thewheel.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is

1. A brake-fitting comprising a bracket fur-r nished with a bar havingat oneside loops to form bearings for a rock-shaft and-having on theopposite side standards provided with feet to fit upon a vehicle-axle,one of said feet being provided with a toe to project parallel with saidbar; a clip to fit o'ver said'toe to clamp thesame upon the axle; a clipfor clamping the other foot to the axle; a friction-ring furnished witha hub-ring for attachment to the hub of the vehicle-wheel; a rock-shaftjournaled in the loops of thebracket and furnished at one end with acrank-arm and at the other end with a head having two. projecting pins;a brake band pivoted to said pinsv respectively and encircling. thefriction-ring; and means for fastening the ends of the brake-band onsaid pins.

2. A brake-fitting comprising a bracket furnished with a bar having atone side loops to form bearings fora rock-shaft and having on theopposite side standards provided with feet to fit upon the vehicle-axle,one of said feet being provided with a toe to clamp the same upon theaxle; a clip for clamping the other foot to the axle; a friction-ringfurnished with a hub-ring for attachment to the hub of thevehicle-Wheel; a rock-shaft journaled in the loops of the bracket andfurnished at one end with a crank-arm and at the other end with a headhavingtwo projecting pins; 2: brake-band pivoted to said pinsrespectively and encircling the friction-ring; means for fastening theends of the'brake-band on said pins; and a brace connected at one endwith one of the clips and connected at the other end with a brake-bandnear its mid-length.

3. The combination with a vehicle-axle and a vehicle-wheel thereon; of abracket; clips fastening the bracket to the axle; a rock-shaft journaledon the bracket and furnished with a lever for its partial rotation andwith a coiled spring around said shaft and connected. thereto to operateit in opposition to said lever, and also furnished with a head and twopins thereon; a friction-ring furnished with a collar fitted upon andfastened to the-hub of the wheel; a brakerband connected at its endswith said pins and encircling the friction-ring and furnishedsubstantially midway between its ends with a loop; and a resilient braceconnected with the axle at one end and with said loop at the other end,said brace arranged to yieldingly hold said hrake-band away from thefriction-ring.

4. A brake-band fitting for vehicles, comprising a shaft. operatingmeans for turning said shaft, spring means carried by and connected tosaid shaft to turn the same in opposition to said operating means, meanscarried by'said shaft and adapted to-contract said brake band when theshaft is turnedfa frictionirring encircled by saidbrake-band, and aresilient brace attached to the brake-band at substantially midway ofthe ends thereof and arranged to yieldingly hold said brake-band awayfrom said friction-ring.

In testimony whereof I have signed my name to, this specification, inthe presence of two subscribing witnesscs, at Los Angeles, California,

this 14th day of June, 1902.

ANTONIN SPERL.

Witnesses: I

JAMES R. TOWNSEND, F. M. TOWNSEND;

